Database Users

A battery issue that's driving me insane.

Ok, my battery(atleast I believe it's my battery) is having a serious issue, so hopefully someone will be able to help me out on this one. After flashing multiple roms and such over time now, this has never happened till now, basically whats going on is my phone will be completely charged, then ill unplug it and mess around with it for a short time then say the battery percentage is at 75% well randomly the phone will just completely shut off. When turning it back on the battery will be completely dead, or on occasion it will either be slightly the same percentage or lower, but most of the time completely dead. Ive been running the same old stock evo battery since the day the evo came out and im currently running Gruesomwolf's shooter e3d rom which ironically this all started happening the first time I flashed it. So hopefully someone can help out with this, been thinking the battery is just done for, but im not sure. So I figured i'd ask for some help and opinions on what to do haha

Sounds like the battery is done to me.

Your battery is toast.
Sent from my PC36100 using XDA App

Yep new battery time send tommy tomato a pm he has stock battery for cheap and he ships ASAP tell him Austin sent u LOL I was having this exact same problem I guess stock batteries are only good for a year idk
Sent from my PC36100 using Tapatalk

since no one's said it, I think your battery is pining for the fjords.
Might want to clear battery stats and charge to full once while the phone is turned off, but I really think daisies are being pushed up...

Check and clean the contacts on both the battery and on the phone itself, being careful not to short the battery while cleaning it. Then, reinstall the battery and make sure theres not too much or any play where contact may be lost. If you do that and still have a problem, its definitely new battery time.

wtwildnateis said:
Ok, my battery(atleast I believe it's my battery) is having a serious issue, so hopefully someone will be able to help me out on this one. After flashing multiple roms and such over time now, this has never happened till now, basically whats going on is my phone will be completely charged, then ill unplug it and mess around with it for a short time then say the battery percentage is at 75% well randomly the phone will just completely shut off. When turning it back on the battery will be completely dead, or on occasion it will either be slightly the same percentage or lower, but most of the time completely dead. Ive been running the same old stock evo battery since the day the evo came out and im currently running Gruesomwolf's shooter e3d rom which ironically this all started happening the first time I flashed it. So hopefully someone can help out with this, been thinking the battery is just done for, but im not sure. So I figured i'd ask for some help and opinions on what to do haha
Click to expand...
Click to collapse
your battery might be dead but you should either try 1 of 3 things first:
1 - you can calibrate your battery
2 - Flash a new Kernel
3 - Flash a new Rom
you may find aosp roms/kernels in the link in my sig, if you are interested. hope i helped ^_^

Calibrating Without Downtime!
wtwildnateis said:
Ok, my battery(atleast I believe it's my battery) is having a serious issue, so hopefully someone will be able to help me out on this one. After flashing multiple roms and such over time now, this has never happened till now, basically whats going on is my phone will be completely charged, then ill unplug it and mess around with it for a short time then say the battery percentage is at 75% well randomly the phone will just completely shut off. When turning it back on the battery will be completely dead, or on occasion it will either be slightly the same percentage or lower, but most of the time completely dead. Ive been running the same old stock evo battery since the day the evo came out and im currently running Gruesomwolf's shooter e3d rom which ironically this all started happening the first time I flashed it. So hopefully someone can help out with this, been thinking the battery is just done for, but im not sure. So I figured i'd ask for some help and opinions on what to do haha
Click to expand...
Click to collapse
Try this trick by zeppelinrox: http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10

Sounds like its toast to me as well. But you can try calibrating like others have mentioned just for sh*ts and giggles. It may or may not help.

Unplugging your battery and dropping a ton of percentage...that's normal with most evos...lack of an SBC kernel
Sent from my PC36100 using XDA App

If u clean the contacts use a qtip and 91% rubbing alcohol. Let it sit for 30 mins so the alcohol can completely evaporate. Then charge til green light with phone off, boot into recovery wipe battery stats, and cache and dalvik while ur there, reboot to phone run it completely dead recharge to green while phone is still off. Use like normal afterwards if battery is still acting up time to euthanize it and get a replacement
Edit: by 91% alcohol I mean the bottle says 91% on it not like 91% alcohol mixed with 9% water its the purest alcohol u can buy at the store
Sent from my -EViLizED-EVO-

Having this issue too after installing CM a few days ago. My extended 3500mAh dies out a few hours quicker than with stock. I heard Tiamat and Savages Zen kernels help battery life. But having major problems trying to flash it.
Sent via Tapatalk on my HTC Evo running CM 7.1.0

If u are using AmonRa try wiping the battery from recovery but before u do let charge for atleast a couple hours maybe that well help if not yep you need a new batter what kernel where u using and on what rom
Sent from my PC36100 using Tapatalk

JUN10R831 said:
If u are using AmonRa try wiping the battery from recovery but before u do let charge for atleast a couple hours maybe that well help if not yep you need a new batter what kernel where u using and on what rom
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
Using Clockwork Mod here. Even then on having major issues getting into recovery. Stalls at the white "HTC EVO 4G" screen every single time. No matter what method I try.
Sent via Tapatalk on my HTC Evo running CM 7.1.0

Weird battery issues

Hello all!
I just bought a used Fascinate and am having some weird issues with the battery and wanted to see what your opinions would be.
The issues I am having are:
- Very poor battery life
- Battery level jumping around after removing battery (Will be at 94% and jump to 90%)
- Slow charging time
I am currently running CM7 nightlies with the CM7 Kernel. Bad battery?
Edit: I have also re-flashed stock software and cleared battery stats a couple of times to no avail

Bump! Anyone have ideas?

Not really, maybe it's time for a new battery.
Sent from my SCH-I500 using xda premium

when you are clearing battery stats are you doing so with a full charge? Also are you going through a calibration cycle afterwards i.e. Charge to full>Wipe stats>Use it till it dies>charge to full again. Do this a couple times and it should help. If not, new battery for sure. It's kind of a pain going through the process but its worth it

hesh.monster said:
when you are clearing battery stats are you doing so with a full charge? Also are you going through a calibration cycle afterwards i.e. Charge to full>Wipe stats>Use it till it dies>charge to full again. Do this a couple times and it should help. If not, new battery for sure. It's kind of a pain going through the process but its worth it
Click to expand...
Click to collapse
Thanks man, Im going through this process right now... It is a pain! Hopefully it works!

No problem, it really is a pain lol. I've got two extended batteries and a standard that i've done a crapload of times. The extendeds take an eternity to die. My last cycle went 2 days 14 1/2 hours off charger with moderate use.
If you do end up needing a new one, and dont mind the extra size I would definately recomend the OEM extended.
"I didn't say that...my Fascinate has a tiny troll inside it."

Naztech has good extended battery
Sent from my SCH-I500 using XDA App

Thanks fellas!

I second the Naztech ext. Get a couple days out of it.
Only 4 more posts ...

Just heard today on a podcast I listen to, that the old thinking of letting these batteries completely drain is actually more harmful. Now the thinking is to plug device in whenever possible. I love my naztech ext. Def getting a second.
SCH-1500....sc v03 voodoo lagfix......LETS GO PENS!

Bump! Anyone have ideas?

jaspring said:
Bump! Anyone have ideas?
Click to expand...
Click to collapse
Its posts like this that start flame wars...
@jaspring, please quit posting BS to get your count up, especially here

It seems that ever since I went from TSM Resurrection to SC charge time for the phone has gone up. Battery life is still about the same (better than Froyo), but definitely takes longer to fully charge. Seems like TSM was the best overall performing ROM for me.. thinking about going back.

Battery life decreasing...

Ok, so I've had my SGN for little under a month for the first few weeks I had it I was getting great battery life, almost 6 hours screen time full day of battery etc.. Then I rooted it using one click root because I wanted some more access, since then battery life has seemingly been slowly getting worse. I have tried changing back to stock roms and custom roms, I've fully discharged the battery and charged while it is off a number of times but I'm down to 3 hours screen time and can't get a full day out off it anymore.
Is this something to do with the way I rooted, what can I do test and try and get back my battery life, this is the main reason I got this phone..
It's hard to say if it was the first update I installed/rooting or something wrong with the way I'm charging but it's certainly decreased even on a stock ROM without installing anything..
Anybody else encountered this?

Check battery stats and show us a print screen
Sent from my GT-N7000 using XDA App

Going to try latest firmware and just bought Odin mobile.. Hoping that'll fix it.
Won't let me add a picture says I don't have permission.. Sigh.
Sent from my GT-N7000 using xda premium

Goonish said:
Ok, so I've had my SGN for little under a month for the first few weeks I had it I was getting great battery life, almost 6 hours screen time full day of battery etc.. Then I rooted it using one click root because I wanted some more access, since then battery life has seemingly been slowly getting worse. I have tried changing back to stock roms and custom roms, I've fully discharged the battery and charged while it is off a number of times but I'm down to 3 hours screen time and can't get a full day out off it anymore.
Is this something to do with the way I rooted, what can I do test and try and get back my battery life, this is the main reason I got this phone..
It's hard to say if it was the first update I installed/rooting or something wrong with the way I'm charging but it's certainly decreased even on a stock ROM without installing anything..
Anybody else encountered this?
Click to expand...
Click to collapse
I have the same "feeling" with my Note. I have installed System Panel to monitor usage but I can't find anything specific that seems to be sucking the power. But it certainly "feels" like my battery is draining faster than before.

It's probably as the phone gets older, you install more & more Apps. Some of these are probably working in the background sucking your battery.
Sent from my GT-N7000 using Tapatalk

Even with a clean stock rom, it doesn't seem as good as it was without root or any updates.. Wish I remembered what the phone came loaded with, I'd give that a go..

xamaba said:
I have the same "feeling" with my Note. I have installed System Panel to monitor usage but I can't find anything specific that seems to be sucking the power. But it certainly "feels" like my battery is draining faster than before.
Click to expand...
Click to collapse
Try Rocket Rom v17 or latest XXLA1 firmware and your battery life will come back even better than before, just me

Same "feeling" here! I will try LA1 firmware....

So I'm currently sitting on 4.30 hours screen time, 15 hours uptime with 20% battery remaining.
Running la1 firmware and la3 modem, been using stock browser. Taking lots of photos with flash too, so I think this combo has rectified my issues but I know there's more potential as this is roughly the same stats I got on my dhd, although that was underclocked and tweaked to the clappers.
Faith is resetored in my device, hopefully it improves.

Battery Calibration?

I am kind of amazed with what I am seeing, and am wondering if someone on XDA can help me understand this. So I was running CM7.x on my MT4G for over an year, and this past weekend I switched to CoreDroid because I wanted to try out Sense.
I had a bad feeling about the battery usage because the ROM was "heavier" than CM7.x in terms of UI, Graphics (of course because of Sense 3.5). I went ahead and installed the ROM anyways.
Within a couple of hours, I went from being fully charged to 5% battery....it was draining faster than anything I have seen before. I read CoreDroid release notes and they had mentioned about this severely fast battery drain.
Based on their recommendation, I fully charged the phone once battery level reached 5%. This time, my battery lasted about 17-18 hours, and again I fully charged it when it reached 5%.
Now after the second recharge, its been about 24 hours and I am at 97% battery. I didn't believe CoreDroid release notes that battery life will become better after couple of recharges; I thought it was a bunch of bull to get people to install their ROM.
I am glad to say I was wrong Can someone please explain this battery calibration deal to me?

Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Sent from my HTC Glacier using XDA App

estallings15 said:
Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Best link ever; most informative.
- I think everyone loves Dianne now.
- Someone has a flying car already ...
- In the middle of the most intellectual and technical discussion of battery usage that I have seen, someone asks what is the best facebook app - brilliant!
So...
1. Battery stats are calculated differently per phone and OS version.
2. Battery stats reporting is definitely not %100 accurate.
3. Battery percentage is calculated differently per phone and OS version.
4. Battery percentage reporting is definitely not %100 accurate.
5. On some phones, you can override battery charging limitations by 'bumping'.
6. 'Bumping' is not recommended as can shorten your battery life.
They actually did not cover the OP situation where you let that battery go below 5%, although I am always guilty of skim reading. Still, extremely informative and explains a lot of previously posted battery phenomena.

estallings15 said:
Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Wow, that made up for intense reading - thanks a lot.
It can't be something in my head for sure, If the difference was say a couple of hours I probably would have agreed with "the lady at Google" But I went from 2-3 hours to 24+ hours, so yes it's not in my head
Thanks again for your feedback.

Homerbsharp said:
Best link ever; most informative.
- I think everyone loves Dianne now.
- Someone has a flying car already ...
- In the middle of the most intellectual and technical discussion of battery usage that I have seen, someone asks what is the best facebook app - brilliant!
So...
1. Battery stats are calculated differently per phone and OS version.
2. Battery stats reporting is definitely not %100 accurate.
3. Battery percentage is calculated differently per phone and OS version.
4. Battery percentage reporting is definitely not %100 accurate.
5. On some phones, you can override battery charging limitations by 'bumping'.
6. 'Bumping' is not recommended as can shorten your battery life.
They actually did not cover the OP situation where you let that battery go below 5%, although I am always guilty of skim reading. Still, extremely informative and explains a lot of previously posted battery phenomena.
Click to expand...
Click to collapse
Lol....yea that FB app question was pretty brilliant I'll try to get in touch with CoreDroid folks, and see if they can answer my question.
I mean it does work, it's almost like a miracle to me.

I know. I just can't figure out WHY. Its been really bothering me.
Sent from my HTC Glacier using XDA App

Jessooca said:
Which battery calibration app are you using?
Sent from my HTC Glacier using xda premium
Click to expand...
Click to collapse
None, I am just surprised to see improved battery life after couple of 'full-drain, full-charge" operations.
BTW, care to suggest a good battery calibration app? Much appreciated.

well, the best battery calibration app Ive used is Battery Calibration by NeMa, but now after reading this thread it seems that they dont really do anything

ajrulez said:
None, I am just surprised to see improved battery life after couple of 'full-drain, full-charge" operations.
BTW, care to suggest a good battery calibration app? Much appreciated.
Click to expand...
Click to collapse
The drain-charge cycles is just a way to calibrate the battery- takes more time to "forget" the old stats, so people either use an app or manually delete the battery statistics so one can start accumulating fresh statistics.
After a few days you get your statistics right, from then on the battery indicator will be more or less accurate.
Battery drainage has nothing to do, really, with how many times you'll calibrate or drain/ charge or whatever. It has to do with how much you use screen on, Wifi, BT, gps, partial wakelocks, apps syncing etc. In other words- use your phone and be assured battery is going to drain. Leave it alone, let it sleep- battery will last a couple of days...
Sent from my HTC Glacier using Xparent Cyan Tapatalk

just to clarify, and sorry for butting in, but there is no such thing as "calibrating your battery"... this has been debunked by many people who understand android's Linux kernel and even an android engineer at Google.
the batterystats.bin file is simply that, a bin. it does nothing more than collect dumped statistics of what exactly has been using your battery, how long, how much power those processes used, etc. it has absolutely nothing to do with your phone's ability to display correct information about how much juice you have left - that function is within the Linux kernel which monitors, and controls power throughout the device.
ask yourself this... ever flashed a ROM with say 50% power left on a charge? what happens after your first boot? does your phone suddenly have no idea how much charge is left? no. it doesn't. because the new kernel you just flashed with your ROM is picking up right where you left off.
wiping battery stats is useless. period. it.does absolutely nothing to better battery life. that is fact. that is your phone. that is your Linux platform and straight truth in how it works.
and since it is stored in the data directory, every time you flash a ROM and wipe data, you are wiping the battery stats... so why do you boot up and do it again... I know... good question.
Sent from EVO 3D using XDA premium

aznprodgy said:
well, the best battery calibration app Ive used is , but now after reading this thread it seems that they dont really do anything
Click to expand...
Click to collapse
Hehe, yes I doubt if these battery calibration do anything.
estallings15 posted a very informative link in 2nd or 3rd post (of this thread)....all these battery calibration apps simply delete the battery stats file at least thats what one from NeMA does anyways

cobraboy85 said:
just to clarify, and sorry for butting in, but there is no such thing as "calibrating your battery"... this has been debunked by many people who understand android's Linux kernel and even an android engineer at Google.
the batterystats.bin file is simply that, a bin. it does nothing more than collect dumped statistics of what exactly has been using your battery, how long, how much power those processes used, etc. it has absolutely nothing to do with your phone's ability to display correct information about how much juice you have left - that function is within the Linux kernel which monitors, and controls power throughout the device.
ask yourself this... ever flashed a ROM with say 50% power left on a charge? what happens after your first boot? does your phone suddenly have no idea how much charge is left? no. it doesn't. because the new kernel you just flashed with your ROM is picking up right where you left off.
wiping battery stats is useless. period. it.does absolutely nothing to better battery life. that is fact. that is your phone. that is your Linux platform and straight truth in how it works.
and since it is stored in the data directory, every time you flash a ROM and wipe data, you are wiping the battery stats... so why do you boot up and do it again... I know... good question.
Sent from EVO 3D using XDA premium
Click to expand...
Click to collapse
Yep, agree with your comments 100%. After reading the link posted by estallings15 earlier in this thread, the myth of battery calibration was busted

I agree with most that Battery Calibration is a joke, and doesn't mean anything. However, batteries in many devices (not just our Cell Phones) seem to benefit from proper discharge/full charge cycles. In fact, it's usually recommended in things like electric RC cars that you completely run down the battery as far as you can go (realistically of course!) prior to charging; also to prolong battery life. I always notice at least slightly longer use times if I don't always pop the thing on a charger at 75%. But go with what works for ya, and of course some roms DO drain faster than others. And less screen haha

[Guide] Calibrating battery

I found a guide somewhere on the internet on the best way to calibrate battery stats on a rooted device when I had my old hero and I use it a lot to this day so I decided to share the best way to do it here. If there is in fact a thread about this already in our forums I apologize but I could not find one. So here it is.
Step 1.
First and foremost charge the phone to 100%(Even if it says 100% wait about 5 minutes or so just be sure.)
Step 2.
Once it is at 100% go into data/system (using root explorer) and delete the batterystats.bin file there.
Step 3.
Unplug the charger and reboot to recovery, wipe cache and dalvik cache and wipe battery stats once more while you're there just to make sure they're gone.
Step 4.
Power the phone down and plug it back in. Charge it to 100% while it's off (the battery bar can be deceiving so even once it shows it's full give it five more minutes or so to be sure) and then power up.
*As a side note, if you are using stock kernel, or a kernel without the 100% battery mod then your only going to be at 96%. Thanks to Glennkaonang for reminding me of this.
Once it is booted to the OS you should now see that the battery bar is at 100%. (please note that when it's going through the "Android is upgrading" thing it can take 1 or 2% off the battery if you have lots of apps)
Final step.
Wait for the phone to die completely (to where it shuts off on its own) and let it charge to 100% while the phone is off and power it back up. Do this step at least two or three times.
After that you should have a fully calibrated battery and have no more messed up battery reporting.
Photo of my average battery life just for fun.
Everybody enjoy! If this helped you please hit thanks!
*Thanks to whoever it was that wrote this up in the first place. If I knew who it was I would give proper thanks.
Sent from my Nexus S 4G using xda premium

Unless my batt % reporting goes wonky between reboots, I don't ever wipe stats. It doesn't necessarily increase your battery life, but it does appear to fix incorrect reporting.
Sent from my Nexus S

Wipe batterystats and fix permissions working well after each kernel change but I will give a try.

GideonX said:
Unless my batt % reporting goes wonky between reboots, I don't ever wipe stats. It doesn't necessarily increase your battery life, but it does appear to fix incorrect reporting.
Sent from my Nexus S
Click to expand...
Click to collapse
I didn't think it would improve battery life either but it does. Maybe not a HUGE amount but it definitely does help a little. Plus it will give you the correct percentage rather than showing 100% when it's really only 95%. Lol. Anyways, to each their own.
Sent from my Nexus S 4G using xda premium

It thought someone from Google talked about this before and how it's unnecessary?

doa4ever said:
Wipe batterystats and fix permissions working well after each kernel change but I will give a try.
Click to expand...
Click to collapse
Yeah this is kind of a more in depth way of doing it and it seems to help a bit more.
Sent from my Nexus S 4G using xda premium

Charge it to 100% while it's off (the battery bar can be deceiving so even once it shows it's full give it five more minutes or so to be sure) and then power up.
It's not work on my phone

tuansyaz said:
Charge it to 100% while it's off (the battery bar can be deceiving so even once it shows it's full give it five more minutes or so to be sure) and then power up.
It's not work on my phone
Click to expand...
Click to collapse
Maybe it's not working on your phone because you're using the stock kernel which doesn't have a Battery Life Extender cosmetic MOD.
It's just cosmetic, actually it's still the same 96% as all other Android devices do.
CMIIW

glennkaonang said:
Maybe it's not working on your phone because you're using the stock kernel which doesn't have a Battery Life Extender cosmetic MOD.
It's just cosmetic, actually it's still the same 96% as all other Android devices do.
CMIIW
Click to expand...
Click to collapse
That's pretty much what I was going to say. Lol. I need to add that to the OP.
Sent from my Nexus S 4G using xda premium

This doesn't do anything other than fix incorrect battery logging, it DOES NOT increase battery life in any way.
Not even a tiny bit. Nada. Zip. Zero.
Dianne hackborne covered this on Google+ and said repeatedly that it doesn't extend battery life in the slightest. She would know as she wrote the code I believe.
Placebo effect in operation here. Plain and simple.

Thanks a bunch.

mabry said:
Thanks a bunch.
Click to expand...
Click to collapse
You're very welcome.
Sent from my Nexus S 4G using xda premium

Why do you insist on bumping this? No new information has been uncovered, nothing has changed.
The only reason I can think of is that you are looking to stock up on thanks.

I did this before I even found this thread, save for I use a Battery Calibration app from the market instead of deleting the .bin file. (App does it for me.)
This was the result.
Word.

Great guide! I haven't saw a calibrating guide either. I think it should be sticky!

Joshhayes801 said:
Why do you insist on trolling my stuff? Maybe you should spend your time doing something useful instead of wasting it on something that obviously doesn't matter to you. I bump it so new users can see it. If you don't like it, don't look at it. :thumbup:
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
I wasn't trying to troll your stuff. I appreciate that somebody created this guide (albeit now proved to be ineffective/useless) as an informative resource for others. That being said, this information is easily found everywhere, especially with search.
Please understand, if everybody bumped a thread they created every few days because they thought it was useful, nothing new would ever show up on the first page of the forum. It would be the same threads appearing over and over.
I wasn't trying to offend you, I just think that bumping dying/dead threads is counter intuitive to growing this forum community.
Thank you.

It is in a sense misinformation though. It doesn't calibrate the battery, merely wipes androids battery usage statistics, which are only for reference to the user not the system.
Although included, the only pseudo calibration is charge fully, discharge fully then charge fully. This process wipes battery stats anyway.

rhanks
Sent from my Nexus S

gear.h34d.2012 said:
I did this before I even found this thread, save for I use a Battery Calibration app from the market instead of deleting the .bin file. (App does it for me.)
This was the result.
Word.
Click to expand...
Click to collapse
I have never calibrated my battery and get almost exactly the same battery life as what you are getting. All this does is wipe the stats.
____________________
Just Flash It !!!